Self-contained demountable wheel and hub cap



A.LU PUTTQAHG SELF CONTAINED DEMOUNTABLE WHEEL AND HUB CAP Filed July14, 1919 I 2, WWMM Mummy raeeaee he. e, was.

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ALDEN L. IPU'I'NAM, 015 DETROIT, MICHIGAN, ASSIGNOB, BY MESNEASSIGNMENTS, T0 DETROIT PRESSED STEEL COMPANY, 01 WILMINGTON, DELAWARE,CORPU- TIGN OF DELAWARE.

SELF-CONTAINED DEMOUNTAIBLE WHEEL HUB C.

Application filed July 14, 1919. Serial No. 810,774.

To all whom it may concern:

Be it known that I, ALDEN L. PUTNAM, a citizen of the United States ofAmerica, residing at Detroit, in the county of Wayne and State ofMichigan, have invented certain new and useful Improvements in Self-Contained Demountable Wheels and Hub Caps,of which the following is aspecification, reference being had therein to the accompanying drawings.

The invention relates to demountable wheels of the disk type and it isthe primary object of the invention to obtain a construction in whichthe Wheel is mountable and demountable as a' unit having no detachableparts. The invention has further reference to various features ofconstruction as here .inafter set forth.

In the drawings:

Figure 1 is a section through the demountable wheel in the plane of theaxis;

Figure 2 is a sectional elevation of the construction shown in Figure 1;

Figure 3 is a detail view drawn to an en larged scale of a portion ofthe construction shown in Figure 1.

A is the hub of the wheel mounted upon the revoluble axle B; C is thehub flange extending radially outward therefrom; D is the disk which isof dished form and is referably provided with the reversely dishedcentral portion E; F is an annular clamping flange, preferably ofchannelshaped cross section which is arranged con centric with the axisof the disk and is secured thereto by a hub cap G. This cap ispreferably formed or a light gauge sheet metal stamping which is rivetedor otherwise secured to the disk and after passing over the flange Fextends outward. at to surround the outer portion of the hub A. I areclamping bolts engaging the flange F and securing the same to the flangeC of the hub. These bolts I have threaded inner ends which preferablyengage threaded sleeves J extending through apertures in the flange "Cand aligned apei res in the disk The threaded ends oi 1e bolts I alsopass through threaded clamping ring but the said bolts I are smallerdiameter so as to e threaded apertures engages a shoulder L on the hubto center the disk with said hub.

With the construction as described the disk clamping ring F, hub cap Gand clamping bolts I constitute a unit separable from the hub, but notnormally detachable from each other. To mount the wheel it is slippedupon the hub the flange K engaging the shoulder L to hold the parts inconcentric relation and by then slightly rotating the disk the aperturestherein may be registered with the sleeve J and enga ed therewith. Thethreaded portions of t e bolts I are initially in the recess within theclamping member F and are arranged in alignment with the threadedsleeves J. These bolts may be then successively screwed into thesleeves, this being permitted by the sliding engagement between theunthrea'ded shanks I and the clamping member. When all of the bolts aretightened, the wheel will be securely mounted, the load being carriedthrough the engaging shoulders K and L and the torque stress beingcarried into the sleeves J. Thus the bolts I are relieved-from allshearing stress and are subjected only to tension stresses.

To demount the wheel the bolts I are successively unscrewed fromengagement with .the sleeves or bushings .I. but are not detached fromthe clamping member F inasmuch as the threaded portion of the bolt canonly be disengaged by screwing it outward through the threaded aperturein said clamping member. When all of the bolts are unfastened; the wheeltogether with the hub cap can be detached as a unit.

Where the wheel is provided with a brake drum, this is preferably of theconstruction shown, in which M is the drum and N is inwardly-extendingflange which. is coned sufiiciently to clear the reversely dishedportion E of the disk. The inner portion of this flange h? is parallelto the plane of the wheel engages a shouldered bearing on the flange Itis secured to said by the sleeves or bush ings J. which preferably areformed ea s er flange J riveted or otherwise secu to the a i '3" i 1 snoniguie I there the dishes; center e as outward with to th t or as ewheel may be mounted either as n where the dish of the disk isoppositely arranged. Inasmuch, however, as the hub cap is permanentlyattached to the disk, the latter can not be reversed without reassembly.

One advantage of the construction is that the hub cap being permanentlysecured will form an eiiective seal against the entrance of water, mudor dust, and to prevent leakage through the bolt apertures, sealinggaskets P may be used as shown.

What I claim as my invention is:

1. The combination with a wheel hub having a radiallyoutwardly-extending flange,

,of a demountable wheel body for engaging said hub, an annular clampingmember for said body, a hub cap enclosing said annular clamping memberand permanently secured to said body, and means for securing saidclamping member to said flange permanent.- ly carried by the demountableunit, and bushings engaging said flange engageable by said securingmeans.

2. The combination with a hub, of a demountable wheel body therefor, anannular clamping member of channel cross-section permanently attached tosaid wheel body, a clamping bolt having a threaded end portion adaptedto be screwed through a threaded aperture in the Web of said clampingmember and provided with a plane portion of lesser diameter in rear ofsaid threaded portion slidablc within said threaded aperture, and athreaded socket upon silld hub with which said bolt is engagea e.

3. The combination with a hub having a radially outwardly-extendingflange, of a demountable wheel bodv adapted to seat against said flange,an internally threaded headed bushing engaging an aperture in saidflange and engageable with a registering aperture in said wheel body, aclamping member permanently attached to said wheel body apertured inregistration with said bushing and correspondingly threaded, beingprovided with a recess in its inner face, a clamping bolt having athreaded end portion adapted to be screwed through the threaded aperturein said clamping member to engage the recess therein and having a planeshank portion slidable through the threads in said clamping memberpermitting the screwing of the threaded portion of the bolt into saidinternalh threaded bushing.

4. The combination with a Wheel hub, of a wheel body demountablyengaging said hub, a hub cap for enclosing said hub, an annular clampingmember, and means permanently attached to said wheel body for securingthe same to said hub, said hub cap, annular clamping member, securingmeans and wheel bodv forming a single demountable unit.

In testimony whereof I atfix my signature.

ALDEN L. PUTNAM.

